Deceive a top officer at a certain point (3)
I believe the answer is:
con
'deceive' is the definition.
(I've seen this before)
'a top officer at a certain point' is the wordplay.
'a top officer' becomes 'CO' (commanding officer).
'at' means one lot of letters go next to another.
'a certain point' becomes 'n' (North. I am not sure about the 'certain' bit.).
'co'+'n'='CON'
Can you help me to learn more?
(Other definitions for con that I've seen before include "Deceive; disadvantage" , "Swindle in draconian way" , "Opposed" , "Trick, deceive" , "Diddle" .)